HW Score: 67.99%, 12.24 of 18 points Part 2 of 6 0 Points: 0 of 1 _ _ Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.31 parts per million. It was Questlon \"St '6 found that the mean amount of carbon monoxide in the air for the random sample of 64 cities is 2.37 parts per million and the standard deviation is 2.11 parts per million. At 0: = 0.10, can the claim be supported? Complete parts (a) through (e) below. Assume the population is normally distributed. Question 10, 7.3.23T Homework: Sec 7.3 0 Question 6 (a) Identify the claim and state H0 and Ha. Which of the following correctly states H0 and Ha? x/./ Question 7 Ho: p. 2 2.31 Ha: p 70; a = 0.01 Sample statistics: x =71.7, s = 3.1, n=26 Question 6 What are the null and alternative hypotheses? Choose the correct answer below. Question 7 O A. Ho: H = 70 O B. Ho: H # 70 HA: H # 70 HA: H = 70 C. Ho: US 70 O D. Ho: H 2 70 O Question 8 HA: H > 70 HA: H 29 What is the value of the standardized test statistic? The standardized test statistic is . (Round to two decimal places as needed.)